LRC-LIB-KEYWORDS: keyword translations: Person, merging, export

- Russian had no "Person": the option showed in English (it reaches
  `tr` through a variable). A test now checks that every label the
  Keyword List passes that way is in every language's file.
- The merge confirmation's button said "Merge", which some languages
  translate as merging photos (HDR, panorama): it says "Merge Keywords".
- Traditional Chinese uses 匯出 for Export, as everywhere else in the
  file, not 轉存; "Export Containing Keywords" means the parent
  keywords in both Chinese files (上層 / 上级), not "included" ones.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

crates/ui-egui/locales/ru.json

@@ -1429,5 +1429,6 @@
   "Delete Keyword…": "Удалить ключевое слово…",
   "Drop here for the top level": "Отпустите здесь для верхнего уровня",
   "Their photos and the keywords below them come together under one keyword.": "Их фото и вложенные ключевые слова объединятся под одним ключевым словом.",
-  "Select photos to give them keywords.": "Выберите фото, чтобы назначить им ключевые слова."
+  "Select photos to give them keywords.": "Выберите фото, чтобы назначить им ключевые слова.",
+  "Person": "Человек"
 }

crates/ui-egui/locales/zh-hans.json

@@ -1744,7 +1744,7 @@
   "Separated by commas": "用逗号分隔",
   "Keyword Tag Options": "关键字标记选项",
   "Include on Export": "导出时包含",
-  "Export Containing Keywords": "导出包含的关键字",
+  "Export Containing Keywords": "导出上级关键字",
   "Export Synonyms": "导出同义词",
   "Create Keyword Tag": "创建关键字标记",
   "Edit Keyword Tag": "编辑关键字标记",

crates/ui-egui/locales/zh-hant.json

@@ -1743,9 +1743,9 @@
   "Synonyms": "同義詞",
   "Separated by commas": "以逗號分隔",
   "Keyword Tag Options": "關鍵字標記選項",
-  "Include on Export": "轉存時包含",
-  "Export Containing Keywords": "轉存包含的關鍵字",
-  "Export Synonyms": "轉存同義詞",
+  "Include on Export": "匯出時包含",
+  "Export Containing Keywords": "匯出上層關鍵字",
+  "Export Synonyms": "匯出同義詞",
   "Create Keyword Tag": "建立關鍵字標記",
   "Edit Keyword Tag": "編輯關鍵字標記",
   "Create": "建立",

crates/ui-egui/src/panels/dialogs.rs

@@ -904,7 +904,8 @@ pub fn show(app: &mut LightcraftApp, ctx: &egui::Context) {
                     Dialog::FaceModel { info, .. } if !informational && info["download"].is_string() => "Download",
                     Dialog::FaceModel { .. } if !informational => "Install",
                     Dialog::ConfirmDelete { .. } | Dialog::DeleteKeyword { .. } => "Delete",
-                    Dialog::MoveKeyword { .. } => "Merge",
+                    // (not "Merge": that is photo merging, HDR / panorama, in some languages)
+                    Dialog::MoveKeyword { .. } => "Merge Keywords",
                     Dialog::KeywordTag { editing: None, .. } => "Create",
                     Dialog::KeywordTag { .. } => "Save",
                     Dialog::RemoveFolder { .. } => "Remove",

crates/ui-egui/src/panels/keyword_list.rs

@@ -563,4 +563,31 @@ mod tests {
         let (c, ids) = library(&[&["Ärzte", "ÄRZTE"], &[]]);
         assert_eq!(Ticks::of(&c, &ids).tick("ärzte"), Tick::Some);
     }
+
+    /// The labels the Keyword List and its dialogs pass to `tr` through variables (out of reach of
+    /// a literal search) are translated in every language.
+    #[test]
+    fn labels_passed_through_variables_are_translated() {
+        use crate::i18n::Locale;
+        let labels = [
+            "Include on Export",
+            "Export Containing Keywords",
+            "Export Synonyms",
+            "Person",
+            "Merge Keywords",
+            "No keywords yet",
+            "No keywords match",
+            "Add to Selected Photos",
+            "Remove from Selected Photos",
+        ];
+        let dir = std::path::Path::new(env!("CARGO_MANIFEST_DIR")).join("locales");
+        for code in ["de", "es", "pt-br", "ru", "ja", "zh-hans", "zh-hant"] {
+            let text = std::fs::read_to_string(dir.join(format!("{code}.json"))).unwrap();
+            let catalog: std::collections::HashMap<String, String> = serde_json::from_str(&text).unwrap();
+            for label in labels {
+                assert!(catalog.contains_key(label), "{code}: “{label}”");
+            }
+        }
+        assert_eq!(Locale::ALL.len(), 8, "a language added: list its file above");
+    }
 }